This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 33 |
| 2 | 1089 |
| 3 | 21952 |
| 4 | 423606 |
| 5 | 7844188 |
| 6 | 144733702 |
| 7 | 2668260348 |
| 8 | 49183191266 |
| 9 | 906546313088 |
| 10 | 16709359181770 |
| 11 | 307984617365928 |
| 12 | 5676728147678902 |
| 13 | 104632630902956668 |
| 14 | 1928573464163110638 |
| 15 | 35547186061830482980 |